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* rs6000-pinsn.c (print_operand): Deal with no operand instructions.

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* rs6000-pinsn.c (print_operand, case LI): Print condition register
	operand in decimal rather than wrong textual versions.
This commit is contained in:
Jim Kingdon 1993-04-09 20:54:02 +00:00
parent a7a9a714e0
commit 944c1c2f31
2 changed files with 23 additions and 4 deletions
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5
gdb/ChangeLog
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@ -1,5 +1,10 @@
Fri Apr 9 10:20:55 1993 Jim Kingdon (kingdon@cygnus.com)
* rs6000-pinsn.c (print_operand): Deal with no operand instructions.
* rs6000-pinsn.c (print_operand, case LI): Print condition register
operand in decimal rather than wrong textual versions.
* printcmd.c (_initialize_printcmd): Clean up docstring for "x"
(mention 't', remove false thing about 'g' only good with 'f').

22
gdb/rs6000-pinsn.c
View File

@ -189,7 +189,7 @@ int insn_no;
/* parse the operand now. */
pp = rs6k_ops[insn_no].oprnd_format;
while (1) {
while (*pp != 0) {
switch (*pp) {
case TO :
fprintf (stream, "%d", (insn_word >> 21) & 0x1f);
@ -202,11 +202,27 @@ int insn_no;
case LI :
tmp = (insn_word >> 16) & 0x1f;
#if 0
/* This is wrong, wrong, wrong. The condition code only goes
from 0 to 3 (for the instructions which can use extended
mnemonics of this type), and the XX (lt, gt, eq etc.) goes
into the mnemonic, not as an operand.
Probably the best way to get this right in both assembler
and disassembler is to switch to a match/lose style opcode
table like the sparc. */
if (tmp > 11) {
fprintf (stream, "{unknown cond code: 0x%x}", insn_word);
tmp = 0;
}
fprintf (stream, "%s", cond_code [tmp]);
#else
/* So for just always use the "bbf/bbt" form. This is perfectly
correct, just not necessarily as legible.
If tmp is not in the range 0-3, we can't use an XX form anyway. */
fprintf (stream, "%d", tmp);
#endif
break;
case A2 :
@ -372,9 +388,7 @@ int insn_no;
}
++pp;
if (*pp == '\0')
break;
else if (!nocomma)
if (*pp != '\0' && !nocomma)
fputc(',', stream);
}
}